1. discover/demonstrate one's abilities or worth
Professional
Social
take on the challenge to find out/show what you're made of
When you ‘find out what you’re made of’ or ‘show what you’re made of’ it usually means to demonstrate an ability to manage a difficult situation or to prove your abilities or skills in extreme circumstances. This idiom refers to the very core characteristics of an individual and what they are able to cope with. This is a casual expression.